20ml GC headspace vial for Gas chromatography with screw magnetic cap

This is referring to the screw-thread caps (18 mm) and crimp caps (20 mm) for 10 mL headspace vials.We don’t just recommend screw cap headspace vial or crimp cap headspace vial by “feel” or price, running a little experiment to compare the performance of the two kind of headspace vial caps.

Aijiren provides one of the widest selections of Caps, Closures, and Lids available. Select from a wide variety of metal and phenolic, and polypropylene plastic bottle caps, vial lids, and other closures with an array of lining systems to fit your application and container. We also feature dispensing caps, hole caps, septa, tube caps and vial caps.

Aijiren’s Magnetic Precision Screw Metal Cap is 18mm in size, which is very suitable for sealing gas chromatography. This kind of cap is often used in headspace vials, and the center hole with it is very convenient for sampling by autosampler.

The material of Headspace Vials is low extractable Borosilicate glass with low expansion rate, high-temperature resistance, high strength, high hardness, high light transmittance and high chemical stability. Headspace Vials suitable for headspace analysis of volatile solids and gases.

1. Septa and slit septa are available. 2. The usually available cap color is silver, and other special colors can also be produced accordingly. 3. Easy to apply and easy to remove. 4. Aluminum sealing ring with pre-inserted septum is compatible with standard opening crimp top vials.

Suitable for: 18mm screw top headspace vials
Cap material: magnetic metal
Cap features: 8mm center hole
Color: Metallic Silver
Septa material: PTFE / silicone
Septa size: 17.5*1.5mm
Package: 100pcs/pack

The material of Headspace Vials is low extractable Borosilicate glass with low expansion rate, high-temperature resistance, high strength, high hardness, high light transmittance and high chemical stability. Headspace Vials suitable for headspace analysis of volatile solids and gases.

Headspace vials are laboratory vials used for headspace analysis and are resistant to high temperatures and corrosion. Headspace vials are made of low extractable borosilicate glass with low expansion, high temperature resistance, high strength, high hardness, high light transmission and high chemical stability.

Aijiren’s 20mL 18mm Screw Thread Headspace Vial is very popular. It is favored by our customers for its high quality and cheap price. Aijiren is a manufacturer of 20mL 18mm Screw Thread Headspace Vial, so we bring our customers to the factory price.Buy 20mL 18mm Screw Thread Headspace Vial,Choose Aijiren.

Why Choose Aijiren’s 20mm Crimp Top Headspace Vials
Quality – You can expect our Headspace Vials product to be of the highest quality because they must pass the most stringent Quality Assurance tests before they arrive at your door.
Reliability – You can rest assured that the Headspace Vials you purchase will reliably perform the jobs for which they are designed.

Head space vials analysis of gases present in head space sample vials,Laboratory bottles for head space analysis are called head space vials.
To get accurate results,We also have certain requirements for sample bottles and septa.
Head sample space are available with round bottom and flat bottom,as follows:
The round bottom is compatible with most automatic samplers,and the sample arm is convenient for carrying the sample vials from tray.
The flat bottom can achieve a high level of heating efficiency during manual head space injection and is suitable for certain types of instruments.

Headspace vials are available in clear or amber glass, with round or flat bases, with beveled or square crimp seals, or with screw threads. Headspace vials, septum and caps can be purchased separately in various quantities or together as convenience kits to suit your laboratory needs.

Headspace borosilicate glass vials are a type of glass containers designed for storing and analyzing gas samples. They are commonly used in analytical chemistry and the pharmaceutical industry. The term “headspace” refers to the area above the liquid or solid sample in the vial, which contains the gas phase of the sample.
Borosilicate glass is chosen for these vials because it has low thermal expansion properties, making it resistant to thermal stress and thermal shock. This is important because headspace vials are often subjected to heating and cooling during the sampling process.

Headspace vials are made of Aijiren’s borosilicate glass. The 18 mm screw-neck headspace vials with magnetic screw seals for CTC are new in the headspace market where crimped necks dominate.

The metal cover provides the widest temperature tolerance range and is very resistant to impact cracking. The metal cover is very suitable for gas chromatography applications. The metal cover is made of steel (chrome-plated or tinplate anti-corrosion coating) or aluminum.

According to different materials, it can be divided into two types, one is domestic borosilicate, and the other is imported first-grade hydrolyzed glass to meet different levels of customer needs.
The optional capacity is 10ml 20ml, the specifications are: 22.5*46mm, 22.5*75mm, and two colorless and brown headspace vials are provided.

Suit for: 20mm Crimp Top Headspace Vial
Cap Color: Blue
Material: Magnetic Aluminum
Cap Feature: 8mm Centre Hole

SPME Vials, 18mm Screw Thread Vial
Cap: 18mm Magnetic Precision Screw Metal Caps, 8mm Centre Hole
Septa: White PTFE/Blue Transparent Silicone Septa

Gas in the vial enters the gas phase detection. Top-space gas analysis using headspace viars can help automate quality control or sample selection. Use state-of-the-box equipment to prepare your entire experiment for accurate analysis through repeatable samples.

The Lab Use 20mm Crimp Headspace Vial is specifically designed for accurate and reliable analysis of headspace samples in laboratory settings. With its 20mm crimp neck, these vials ensure a secure and leak-proof seal during sample collection and analysis, maintaining sample integrity and preventing contamination.

20mm Crimp Caps squeeze the septum between the rim of the glass vial and the crimped aluminum cap. This forms an excellent seal preventing evaporation. The crimp cap vial requires crimping tools to carry out the sealing process.